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https://issues.apache.org/jira/browse/HADOOP-14935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16201718#comment-16201718
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Steve Loughran commented on HADOOP-14935:
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bq. Hmm, as part of another JIRA, someone should define FileSystem.access in
the documentation and add contract tests.
I saw that, and yes. When I first did that FS spec I trying to pull out the
tests from Swift while delving into the depths of HDFS to actually work out
what went on. I'd avoided the security stuff as it was a lot of extra
complexity & things were hard enough as it is. It's time, at least once we've
finished output stream.
Thinking of what it'd take, it'd be more complex than the others: we'd have to
define abstract methods for subclasses to use to set up permissions. Though if
setPermission() &c were all implemented, you'd have a consistent suite, albeit
a complex one.
> Azure: POSIX permissions are taking effect in access() method even when
> authorization is enabled
> ------------------------------------------------------------------------------------------------
>
> Key: HADOOP-14935
> URL: https://issues.apache.org/jira/browse/HADOOP-14935
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Affects Versions: 2.9.0
> Reporter: Santhosh G Nayak
> Assignee: Santhosh G Nayak
> Attachments: HADOOP-14935-003.patch, HADOOP-14935.1.patch,
> HADOOP-14935.2.patch
>
>
> FileSystem implementation class for azure i.e. {{NativeAzureFileSystem}} does
> not override {{access(path,mode)}} method and uses the default implementation
> from the base class. This base implementaion uses the POSIX permissions to
> check if the requested user has access to given path or not even when
> authorization is enabled, which is incorrect.
> {{NativeAzureFileSystem.access()}} in authorization enabled mode should use
> the authorization mechanism provided instead of relying on the POSIX
> permission ons. So the proposal is to override {{FileSystem.access()}} method
> in {{NativeAzureFileSystem}} such that it honors the authorization mechanism
> configured in authorization enabled mode and falls back to POSIX permissions
> otherwise.
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